<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			.big {
				width: 200px;
				height: 200px;
				background-color: gray;
				border-radius: 30px;
				box-shadow: inset 0 5px white, 
				inset 0 -5px #bbb, 
				inset 5px 0 #d7d7d7,
				inset -5px 0 #d7d7d7;
				display: flex;
			}
			.small{
				width: 30px;
				height: 30px;
				border-radius: 50%;
				background-color: black;
				object-fit: contain;
				display: flex;
				justify-content: space-between;
				flex-direction: column;
				align-items: center;
			}
		</style>
	</head>

	<body>
		<div class="big">
			<span class="small"></span>
			<span class="small"></span>
		</div>
	</body>

</html>